This is regarding a Vive with 1.0 base stations using wireless sync at opposite corners of the room. They're exactly 16 feet apart, 7 feet high. It's been working fine for 3 years in this room, and now this just started happening. I've made zero changes to my setup.
If I directly face one of the two base stations so that the the opposite station is blocked from the headset, it loses tracking and the image goes all gray. Sometimes it flickers gray. The sound is unaffected. If I turn and face a direction where the headset can see both base stations again, the image comes back. The same thing happens when I face either station. It began happening suddenly 2 days ago and has been perfectly consistent ever since.
I've tested each station individually, setting them to channel A and removing power from the other one. Both track perfectly when I use them individually (until I turn away from it of course). I connected them to bluetooth to see if there were any updates but there were not. I use Vive wireless so bluetooth is never connected so I know it didn't do any updates on its own.
I've tried power cycling everything involved, alternating channels B and C between stations, covering up or removing any potentially reflective objects in the room, closing all blinds, and turning off all lights and wifi.
I have not tried a sync cable yet because I can't find one long enough, so I have one ordered. But I've never needed one before now.
Thoughts?